Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
On the influence of the natural shape of particles in multiphase fluid systems: Granular collapses
https://orcid.org/0000-0001-5548-4805
Abstract The collapse of natural granular particles is encountered in various scenarios, including landslides, tsunamis, avalanches, and industrial processes. However, our understanding of these phenomena is still limited due to the complex interactions and the wide range of parameters that influence such systems. Particle shape is one of the factors that can significantly impact granular collapse behavior. In this paper, we studied the role of particle morphology in the interaction between fluids and particles in collapse problems and wave generation in multiphase fluid systems. To achieve this, we employed an image-based Discrete Element Method coupled with the Volume-of-Fluid approach. Initially, the proposed method is validated using experimental data for spherical particles. Then, we increased the irregularity of the spherical particles in four incremental steps. Our study establishes a clear relationship between particle morphology and important characteristics such as displacement, velocity, inter-particle forces, and kinetic energy. We observed that as irregularity increases, interlocking between particles becomes more prominent, leading to reduced particle travel distances. Additionally, our findings demonstrate that interlocking also influences particle-fluid interactions, resulting in significant alterations in the formation of generated waves.
On the influence of the natural shape of particles in multiphase fluid systems: Granular collapses
https://orcid.org/0000-0001-5548-4805
Abstract The collapse of natural granular particles is encountered in various scenarios, including landslides, tsunamis, avalanches, and industrial processes. However, our understanding of these phenomena is still limited due to the complex interactions and the wide range of parameters that influence such systems. Particle shape is one of the factors that can significantly impact granular collapse behavior. In this paper, we studied the role of particle morphology in the interaction between fluids and particles in collapse problems and wave generation in multiphase fluid systems. To achieve this, we employed an image-based Discrete Element Method coupled with the Volume-of-Fluid approach. Initially, the proposed method is validated using experimental data for spherical particles. Then, we increased the irregularity of the spherical particles in four incremental steps. Our study establishes a clear relationship between particle morphology and important characteristics such as displacement, velocity, inter-particle forces, and kinetic energy. We observed that as irregularity increases, interlocking between particles becomes more prominent, leading to reduced particle travel distances. Additionally, our findings demonstrate that interlocking also influences particle-fluid interactions, resulting in significant alterations in the formation of generated waves.
On the influence of the natural shape of particles in multiphase fluid systems: Granular collapses
https://orcid.org/0000-0001-5548-4805
Abstract The collapse of natural granular particles is encountered in various scenarios, including landslides, tsunamis, avalanches, and industrial processes. However, our understanding of these phenomena is still limited due to the complex interactions and the wide range of parameters that influence such systems. Particle shape is one of the factors that can significantly impact granular collapse behavior. In this paper, we studied the role of particle morphology in the interaction between fluids and particles in collapse problems and wave generation in multiphase fluid systems. To achieve this, we employed an image-based Discrete Element Method coupled with the Volume-of-Fluid approach. Initially, the proposed method is validated using experimental data for spherical particles. Then, we increased the irregularity of the spherical particles in four incremental steps. Our study establishes a clear relationship between particle morphology and important characteristics such as displacement, velocity, inter-particle forces, and kinetic energy. We observed that as irregularity increases, interlocking between particles becomes more prominent, leading to reduced particle travel distances. Additionally, our findings demonstrate that interlocking also influences particle-fluid interactions, resulting in significant alterations in the formation of generated waves.
On the influence of the natural shape of particles in multiphase fluid systems: Granular collapses
Hosseini, Mehryar Amir (Autor:in) / Tahmasebi, Pejman (Autor:in)
07.07.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Smooth particle hydrodynamics studies of wet granular column collapses
| Online Contents | 2019
Smooth particle hydrodynamics studies of wet granular column collapses
| Springer Verlag | 2020
The role of constitutive models in MPM simulations of granular column collapses
| Online Contents | 2016
The role of constitutive models in MPM simulations of granular column collapses
| British Library Online Contents | 2016